High-quality post-rendering depth blur
US9305375B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Aug 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10052
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention may provide techniques for blurring an image. The image may be a light field image with color values and depth values for each pixel. The method may include retrieving the image and calculating a blurred color value of a subject pixel of the image. Calculating the blurred color value may include calculating first and second circles of confusion proximate coordinates of the subject pixel for a first depth and second depth greater than the first depth. Color values may be retrieved for first and second sets of pixels within the first and second circles of confusion with depth values proximate the first and second depths, respectively. The second set of pixels may not include pixels occluded by the first set of pixels. The blurred color value may be selected based on the color values of the first and second sets of pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.